Which Central Appalachian coal producer was responsible for a spill that dumped 306 million gallons of slurry into tributaries of the Tug Fork River? 
Massey Energy
-1
Section::::Abstract.
Martin County coal slurry spill
8250213
-1
Section::::Abstract.
Martin County coal slurry spill
8250213
-1
Section::::Abstract.
Massey Energy
2340895
-1
Section::::Abstract.
Massey Energy
2340895